What if the shooter girl doesn't return the message?

Maybe your question makes the other person don't know how to answer.

Maybe the other party didn't see your news.

Maybe the other person doesn't want to talk to you at all.

Maybe the other person was busy when he saw it and forgot it afterwards.

In short, if you want an itchy greeting or question, forget it happened.

If you must get an answer from the other party, you can communicate with the other party face to face.

Even if the other person still chooses silence, the answer is obvious.